bzip2/lzma: fix constant in decompress_inflate

Impact: Cleanup

Fix constant 0x8100 /* 32K */; according to Alain the value 0x8100 was
left over test code to test misalignment, the correct value is indeed
0x8000 == 32K.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>

lib/decompress_inflate.c

@@ -41,7 +41,7 @@ STATIC int INIT gunzip(unsigned char *buf, int len,
 	set_error_fn(error_fn);
 	rc = -1;
 	if (flush) {
-		out_len = 0x8100; /* 32 K */
+		out_len = 0x8000; /* 32 K */
 		out_buf = malloc(out_len);
 	} else {
 		out_len = 0x7fffffff; /* no limit */